EP0159144A1 - Azimutalpropeller für Schiffe - Google Patents

Azimutalpropeller für Schiffe Download PDF

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Publication number
EP0159144A1
EP0159144A1 EP85301833A EP85301833A EP0159144A1 EP 0159144 A1 EP0159144 A1 EP 0159144A1 EP 85301833 A EP85301833 A EP 85301833A EP 85301833 A EP85301833 A EP 85301833A EP 0159144 A1 EP0159144 A1 EP 0159144A1
Authority
EP
European Patent Office
Prior art keywords
outboard housing
propeller shaft
propeller
azimuth thruster
conical recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85301833A
Other languages
English (en)
French (fr)
Other versions
EP0159144B1 (de
Inventor
Hiromitsu Nakata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niigata Engineering Co Ltd
Original Assignee
Niigata Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP59037203A external-priority patent/JPS59171730A/ja
Application filed by Niigata Engineering Co Ltd filed Critical Niigata Engineering Co Ltd
Publication of EP0159144A1 publication Critical patent/EP0159144A1/de
Application granted granted Critical
Publication of EP0159144B1 publication Critical patent/EP0159144B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters

Definitions

  • the present invention relates to an azimuth thruster for use in ships, the azimuth thruster being mounted to ships together with a screw for improving maneuverability.
  • the thruster for ships is mounted to the bow or stern other than the screw.
  • Most conventional thrusters are a type of the tunnel type oneway thruster directed to the port and starboard.
  • the 360 degree rotatable thruster there have been developed the Z-peller propeller and the like thrusters.
  • these thrusters have a structure such that the propeller thereof projects downwards from the bottom of the ship, they are disadvantageous in that their use is largely restricted in depth of water in shallow sea, particularly near quay and hence are not widely used.
  • an azimuth thruster for a ship, including: an outboard housing mounted within a substantially conical recess to turn about a vertically axis, the conical recess formed in the bottom of a hull of the ship to converge upwards; a turning unit, mounted to the hull, for turning the outboard housing about the vertical axis; a propeller shaft rotatably supported by the outboard housing to cross the vertical axis of the outboard housing with an acute angle; a propeller mounted on the lower end of the propeller shaft to be located outside the outboard housing and within the conical recess and to provide a thrust upwards in the direction of the propeller shaft; and a propulsion unit for rotating the propeller shaft.
  • reference numeral 10 designates a hull of a ship, in the bottom 12 of which is formed a conical, more exactly, frustoconical recess 14 which converge upwards.
  • a cylindrical casing 16 vertically passes through a frame 18, which defines the top of the frustoconical recess 14, and is supported in a conventional watertight manner by the frame 18 to be rotatable about its axis.
  • 78 and 82 indicate bearing members and sealing member respectively.
  • the cylindrical casing 16 has at its top a worm gear 20 integrally and concentrically formed with it, the worm gear 20 engaging a worm 22 which forms part of an outboard housing turning unit 23 mounted on the frame 18 within a thruster room 25.
  • the cylindrical casing 16 is rotated by a hydraulic oil motor 60 (FIG. 3) through the worm 22 and the worm gear 20.
  • an outboard housing 26 which has a hollow tubular portion 28 and a propeller shaft supporting portion 30 integrally formed with the tubular portion 28 and having a teardrop or streamline shape.
  • the tubular portion 28 of the outboard housing 26 is concentrically and watertightly bolted to the lower end 24 of the cylindrical casing 16 as shown in FIG. 4.
  • a vertical shaft 32 coaxially extends through and rotatably supported by the cylindrical casing 16 and the tubular portion 28 of the outboard housing 26 through bearing members 76 and 76, the vertical shaft 32 having an upper beveled gear 34 mounted at its upper end and a lower beveled gear 36 at its lower end.
  • a propeller shaft 38 is rotatably supported by the propeller shaft supporting portion 30 of the outboard housing 26 through bearing members 74 and 74 to cross the axis of the vertical shaft 32 at an angle ⁇ .
  • the lower end 40 of the propeller shaft 38 projects form the propeller shaft supporting portion 30 and has a propeller 42 mounted on it to provide a thrust upwards and in the direction of the axis of the propeller shaft 38.
  • 80 designates a sealing member.
  • the upper beveled gear 34 of the vertical shaft 32 engages a drive beveled gear 42 mounted on an output shaft 44 of a propulsion unit 46 and the lower beveled gear 36 engages a driven beveled gear 48 mounted on an upper end portion 50 of the propeller shaft 38.
  • the driving force of the propulsion unit 46 is transmitted to the propeller shaft 38 through the output shaft 44, drive beveled gear 42, upper beveled gear 34, vertical shaft 32, lower beveled gear 36 and driven beveled gear 48, thereby rotating the propeller 42.
  • actuation of the turning unit 23 rotates the cylindrical casing 16 and the outboard casing 26 to thereby turn the propeller 42 about the axis of the vertical shaft 32.
  • the inclined angle a defined between the axis of the vertical shaft 32 and the propeller shaft 38 is set to 65° and the inclined angle formed between the wall of the recess 14 of the hull base line or the horizontal line H.B.L. is set to 25 0 .
  • the angle a is generally in the range from 45° to 75° and the angle 8 is generally in the range from 15 0 to 45 0 .
  • the shape of the recess 14 need not be exactly frustoconical, and may be substantially conical.
  • the propulsion unit 46 includes a main engine 52, which is connected to the output shaft 44 through a clutch 54 which incorporates an oil hydraulic pump (not specifically shown) into it.
  • the output shaft 44 is provided with an air brake 56 for preventing the rotation of the propeller 42 when the clutch 54 is disengaged.
  • the turning unit 23 includes the oil hydraulic pump which is incorporated within the clutch 54, an oil hydraulic motor 60 (FIG. 3) actuated by the hydraulic pump, a cooler 62 for cooling the operating oil, a filter 64 for filtering the operating oil and an oil pump 66 for lubricating rotating portions of the unit.
  • the rotation of the oil hydraulic motor 60 is transmitted through the worm 22, the worm gear 20, and the cylindrical casing 16 to the outboard housing 26.
  • FIG. 1 illustrates a state in which the propeller 42 is directed toward the stern (to the left).
  • the propulsion unit 46 is actuated in this state, the propeller 42 is, as previously described, rotated to thereby produce a thrust at the same angle as the inclined angle a, that is, a thrust directed upwards and parallel to the axis of the propeller shaft 38.
  • the ship is propelled to the right in FIG. 1.
  • FIG. 2 shows the outboard housing 26 turned 90° from the position in FIG. 1.
  • the outboard housing 26 may be rotated 360° or more and equal thrust is obtained at any turned position of the outboard housing 26.
  • the number and dimensions of the straightening plates 70 depend on dimensions of the propeller 42 but the straightening plates 70 are not necessarily provided.
  • the driven beveled gear 48 may be mounted on the propeller shaft 38 as indicted by the phantom line in FIG. 4, in which case the lower beveled gear 36 is modified to engage the driven beveled gear indicated by the phantom line.
  • Various combinations of toothed wheels other than toothed wheels shown in the drawings or other transmission means may be adopted.
EP19850301833 1984-02-27 1985-03-15 Azimutalpropeller für Schiffe Expired EP0159144B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59037203A JPS59171730A (ja) 1983-03-15 1984-02-27 内装構造
JP37203/84 1984-03-15

Publications (2)

Publication Number Publication Date
EP0159144A1 true EP0159144A1 (de) 1985-10-23
EP0159144B1 EP0159144B1 (de) 1989-06-07

Family

ID=12491023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850301833 Expired EP0159144B1 (de) 1984-02-27 1985-03-15 Azimutalpropeller für Schiffe

Country Status (1)

Country Link
EP (1) EP0159144B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179312A (en) * 1985-08-19 1987-03-04 Hollming Oy Turnable propeller assembly
GB2179903A (en) * 1983-03-04 1987-03-18 Kamewa Ab A vessel having parallel hulls
US7614926B2 (en) 2005-11-30 2009-11-10 Rolls-Royce Marine As Means for bearing a propulsion unit and a propulsion system for a waterbourne vessel
WO2012171594A1 (de) * 2011-06-15 2012-12-20 Schottel Gmbh Hydraulischer kraftbypass bei ruderpropellerantrieben
US8968776B2 (en) 2004-07-29 2015-03-03 Ucb, Inc. Composition comprising a benzimidazole and process for its manufacture
CN106240738A (zh) * 2016-08-04 2016-12-21 福建省马尾造船股份有限公司 一种全回转推进器的安装方法
RU2610887C2 (ru) * 2011-11-18 2017-02-17 Роллс-Ройс Аб Способ и устройство для уменьшения азимутального крутящего момента, действующего на движительный гондольный узел или азимутальное подруливающее устройство
US10384754B2 (en) 2017-11-14 2019-08-20 Sangha Cho Azimuth thruster system driven by cooperating prime movers and control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035600A1 (de) * 1980-02-27 1981-09-16 Machinefabriek en Reparatiebedrijf Lips-Keller B.V. Steuerungsvorrichtung für ein Schiff

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035600A1 (de) * 1980-02-27 1981-09-16 Machinefabriek en Reparatiebedrijf Lips-Keller B.V. Steuerungsvorrichtung für ein Schiff

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179903A (en) * 1983-03-04 1987-03-18 Kamewa Ab A vessel having parallel hulls
GB2179312A (en) * 1985-08-19 1987-03-04 Hollming Oy Turnable propeller assembly
US8968776B2 (en) 2004-07-29 2015-03-03 Ucb, Inc. Composition comprising a benzimidazole and process for its manufacture
US7614926B2 (en) 2005-11-30 2009-11-10 Rolls-Royce Marine As Means for bearing a propulsion unit and a propulsion system for a waterbourne vessel
NO335597B1 (no) * 2005-11-30 2015-01-12 Rolls Royce Marine As Anordning ved opplagring av en fremdriftsenhet og en fremdriftsenhet for et marint fartøy
WO2012171594A1 (de) * 2011-06-15 2012-12-20 Schottel Gmbh Hydraulischer kraftbypass bei ruderpropellerantrieben
RU2610887C2 (ru) * 2011-11-18 2017-02-17 Роллс-Ройс Аб Способ и устройство для уменьшения азимутального крутящего момента, действующего на движительный гондольный узел или азимутальное подруливающее устройство
CN106240738A (zh) * 2016-08-04 2016-12-21 福建省马尾造船股份有限公司 一种全回转推进器的安装方法
CN106240738B (zh) * 2016-08-04 2018-05-29 福建省马尾造船股份有限公司 一种全回转推进器的安装方法
US10384754B2 (en) 2017-11-14 2019-08-20 Sangha Cho Azimuth thruster system driven by cooperating prime movers and control method

Also Published As

Publication number Publication date
EP0159144B1 (de) 1989-06-07

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